LONDON (AP) - Call it Cub Cam: Hidden cameras have captured the birth of a Sumatran tiger cub, London Zoo's first in 17 years.

The zoo announced Wednesday that five-year-old tiger Melati had given birth to the cub over the weekend following a six-minute labor.

It said zookeepers had kept Melati's 105-day pregnancy under wraps so they could keep a careful eye on the tiger, installing hidden cameras so as not to disturb the first-time mother.

The cub is the grandchild of the zoo's last tiger cub, Hari - the father of Melati.

The cub - whose sex and name are not yet known - was born six months after the opening of the zoo's new "tiger territory" exhibit, which is designed to encourage breeding of the critically endangered species.